[steve]

Ok so sorry for the confusion but like I said that is the first dyno sheet I’ve seen. Talked to the mechanic and he explained to me what’s going on. The torque numbers are indeed wrong on that sheet. He told me some of the differences between a mustang dyno and a “dyno jet ?” machine and how they work. He is standing by the HP numbers though. Sorry if that upsets some of you.

[Dragncar]

Originally Posted by steve

Ok so sorry for the confusion but like I said that is the first dyno sheet I’ve seen. Talked to the mechanic and he explained to me what’s going on. The torque numbers are indeed wrong on that sheet. He told me some of the differences between a mustang dyno and a “dyno jet ?” machine and how they work. He is standing by the HP numbers though. Sorry if that upsets some of you.

"Sorry if that upsets some of you" ?
You put it out there like your engine is making so much unbelievable power it upsets people.
Its not a standard dyno sheet so people have questions.
Seems like its a nice solid street engine that makes around 560 HP, nothing wrong with that. But no street Pontiac is putting out 887 lbs torque, much less 1200.
And that thing has got to weigh way more than 3400 lbs in street trim. Those cars are heavy.

[steve]

Originally Posted by Dragncar

"Sorry if that upsets some of you" ?
You put it out there like your engine is making so much unbelievable power it upsets people.
Its not a standard dyno sheet so people have questions.
Seems like its a nice solid street engine that makes around 560 HP, nothing wrong with that. But no street Pontiac is putting out 887 lbs torque, much less 1200.
And that thing has got to weigh way more than 3400 lbs in street trim. Those cars are heavy.

That’s the internet for you. Not at all what I intended. I do understand people get ass hurt over the whole “my rides better than yours thing” though.

[Stan Weiss]

Originally Posted by steve

That’s the internet for you. Not at all what I intended. I do understand people get ass hurt over the whole “my rides better than yours thing” though.

I think you just want to believe and that is fine. I have no idea how much HP your engine is making and really don't care. What I and others are pointing out is all of the problem with the dyno sheet you posted. The dyno sheets says 75% drive train efficiency. I believe that is to low yet when you calculate what was used

► 429.6 / 592.1 = 0.72555 which is even lower.

Stan

PS - Let me add 130.7 MPH with a 3.08:1 rear
and a 26" tire is around 5200 RPM
and a 25" tire is around 5410 RPM
and a 24" tire is around 5640 RPM